US Bridges

Nfa A252 over Overflow

FairPosted for load

Hardeman County, Tennessee · 2.7 MI N of SR57 · Structure no. 350A2520001

Built
1965
60 years old
Condition
Fair
inspected August 2024
Type
Channel Beam
Concrete
Length
57 ft
3 main spans
Daily traffic
70
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A252 over Overflow is a concrete channel beam carrying Nfa A252 over Overflow in Hardeman County, Tennessee. It was built in 1965, so it is 60 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 70 vehicles a day, roughly 2% of them trucks, projected to reach 112 by 2042. The structure is 57 ft (17.4 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A252
CrossesOverflow
Location2.7 MI N of SR57
RouteCounty Highway 252
CountyHardeman County
StateTennessee
Coordinates35.07475, -89.02177
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length57 ft (17.4 m)
Longest span19 ft (5.8 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2020)
Projected traffic112 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A252 over Overflow built?

It was built in 1965, making it 60 years old in 2025.

What condition is Nfa A252 over Overflow in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Nfa A252 over Overflow carry?

About 70 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A252 over Overflow?

The structure is 57 ft (17.4 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.

Who owns Nfa A252 over Overflow?

It is owned by the County Highway Agency.